Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 7 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/15/2019   06:15:54   (  -0.01, -75.20) (  -0.72, -72.10)  353.46                80
 07/16/2019   18:37:35   (   0.02, -75.20) (  -0.45, -77.34)  243.68                80
 07/17/2019   18:21:19   (   0.02, -75.21) (   0.54, -72.76)  278.09                80
 07/19/2019   06:42:51   (  -0.02, -75.23) (   0.63, -77.97)  313.80                80
 07/20/2019   06:21:17   (  -0.01, -75.24) (  -0.42, -73.41)  208.36                80
 07/21/2019   18:42:57   (   0.02, -75.25) (  -0.73, -78.65)  387.48                80
 07/22/2019   18:26:42   (   0.01, -75.26) (   0.26, -74.07)  135.20                80
 07/24/2019   06:48:15   (  -0.02, -75.29) (   0.85, -79.29)  455.43                80
 07/25/2019   06:26:40   (  -0.01, -75.31) (  -0.14, -74.72)   67.40                80
 07/27/2019   18:29:24   (   0.02, -75.35) (  -0.02, -75.38)    5.63                80